Maryanne Duan, LMFT
NPI 1558649699 · Marriage & Family Therapist · Tustin, CA
Maryanne Duan, LMFT is a Marriage & Family Therapist provider in Tustin, CA (NPI 1558649699).
Provider details
- NPI number
- 1558649699
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Marriage & Family Therapist106H00000X
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Marriage & Family Therapist106H00000X
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-07-22
- Last updated
- 2025-01-31
- Certified
- 2025-01-31
Frequently asked questions
- What is Maryanne Duan's NPI number?
- Maryanne Duan's National Provider Identifier (NPI) is 1558649699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maryanne Duan's specialty?
- Maryanne Duan is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Maryanne Duan located?
- Maryanne Duan's practice location on file with NPPES is 12821 Newport Ave, Tustin, CA 92780-2711.
- What is Maryanne Duan's phone number?
- The practice phone number listed in the NPPES registry for Maryanne Duan is (714) 803-4866.
- Is Maryanne Duan's NPI active?
- Yes — Maryanne Duan's NPI (1558649699) is active in the NPPES registry as of the last update on 2025-01-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.